Pedal Powered Compressor

do you want a air compressor, or a leaf blower? mechanically wise If you want to compress the air then thast a bit more difficult. leaf blower is simple, replace rear wheel with a fan and pedal, but I dout a you could create the pressure to use a valve or anything. to give a idea of how much air you could move with a 20" fan a gear ratio of 48-15 pedalling at 60RPM it would move over 12038RPM a minuite (if my maths is right). Not sure whether thats a suitable ratio, but I'd guess a fan would give less resistence than a wheel, could be very wrong though..... similar RPM 20" fans deliver up to 1.57 metres cubes of air per second.

if you want to compress the air you'd want to build something that works similar to a bike pump and innertube valve. you'd need some cams and cogs and what not to convert the rotation into linier movement of the piston. Its a bit more complex but cooler than a big fan.

mannn.... I dont have anything else to do but look up fans and stuff.

Cheers for the reply, looking for something that can fill a large volume quickly as apposed to something that can deliver high pressure. Suppose a compressor is not what I need. I think I'm going to try and attach a roller to the axle of a leaf blower impeller and combine with a trainer stand, that no bikes will be harmed!

Cheers